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Deutz Allis 1920 gas in oil
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DougG View Drop Down
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Joined: 20 Sep 2009
Location: Mo
Points: 8113 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DougG Quote  Post ReplyReply Direct Link To This Post Topic: Deutz Allis 1920 gas in oil
    Posted: 08 Apr 2020 at 6:49pm
Got a 1920 DA 1920 that is getting gas in the oil,, sat over winter and had some then - changed the oil last week ,cut 2 acres , set for a week and checked it tonight and it has some more in it,, any fixes for this ?

Edited by DougG - 08 Apr 2020 at 6:50pm
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Orangeisgreat190 View Drop Down
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Joined: 07 Apr 2020
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Points: 50 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Orangeisgreat190 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2020 at 6:48am
I would start by cleaning and checking the carburetor.  Fuel is probably getting past the needle valve and seat while sitting.  I have had the float get a hole in it before.  This allows fuel to enter float and the weight pulls it down, then it no longer floats.  This then keeps the needle valve open allowing fuel out of carb to flow out while not being burned.  The fuel that we get today has a tendency to gum up carburetors and I have seen it eat holes in floats.  To check, remove the float and shake it.  You may feel or hear fuel sloshing inside.  Just a side note:  close the center of carburetor by pulling choke or stuffing a rag down it.  You do not want to drop a screw or needle valve and have to tear it apart to get it back out.  Sometimes the end of needle deteriorates or rubber gets hard and won’t seal.  Check the end of needle.  The rubber should be pliable.  Hope this helps.  If you need a manual or parts diagram, you can look up by engine model and spec number on partstree or kohler website.
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DougG View Drop Down
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Points: 8113 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DougG Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2020 at 8:38am
Thanks for the reply ill check it out!
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Gary View Drop Down
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Joined: 13 Sep 2009
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Points: 5414 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2020 at 10:31am

Could also be a defective fuel pump.
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IBWD MIke View Drop Down
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Joined: 08 Apr 2012
Location: Newton Ia.
Points: 3750 		Post Options Post Options   Thanks (0) Thanks(0)   Quote IBWD MIke Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2020 at 1:33pm
Originally posted by Gary Gary wrote:


Could also be a defective fuel pump.

What I was thinking, went through that with my 782 CC.
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TimNearFortWorth View Drop Down
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Joined: 12 Dec 2009
Points: 2014 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TimNearFortWorth Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2020 at 11:03pm
Cut a cheap 1/4 turn valve into the fuel line and shut off the fuel from the tank while not in use.
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